Customize your resume using keywords described in the job posting. Don't go overboard repeating keywords; 2-3 times will suffice.Which Resume Format Should I Use? Use the following information as a guideline to create your first resume and cover letter or tailor the ones you already have. You don't need more than 3-5 bullets per position, but make sure the bullets accurately and fully describe what your tasks were, how you accomplished them, etc. WHO Who did your job help? The company, clients, customers? Clearly express why you are writing. State how you learned of the organization and job opening. In the process of completing the online application, most employers will require you to submit a cover letter and resume.